This is a photo of the roller I modified in order to keep it moving. I can't find any identifying marks on the roller, or the door, which is custom built 8 1/2 feet tall by 4 1/2 feet wide. It was installed 35 years ago and we cannot find anyone from the original builder to help. I didn't measure the roller before I put it back together but it is about 2 1/2 inches long.
Dave Sr. from SWISCO responded:
February 21, 2019
Thanks for posting! Give our 81-082 roller assembly a look. This could be the roller you are looking for. See if the dimensions match up to your roller.